Adc Calibration - Optoma EX762 Service Manual

6. 3D Test
Procedure
Inspection item
Inspection Distance
Criteria

4-9 ADC Calibration

1. Video Calibration Calibration
Procedure
Check pattern
Inspection item
Criteria
- Test equipment: 1. DVD Player & HQFS format CD
or 2. PC with 3D Graphic card
- Test signal: 1280X720@120Hz (HQFS format CD)
- 3D test
- < 6M
- The image should not appear noise, flicker,
shadow, shocking, abnormal color.
- Test equipment: video generator
- Once Main Board is changed, video calibration
should be done as well.
(1) Test signal: 480i
(2) Test Pattern: SMPTE BAR
- Note
(1) Calibration pattern should be in full screen
mode.
(2) Please refer to 4-2 Guide to get into service
mode 1 and choose "ADC calibration".
(3) Choose and get into "Video Calibration", press
"Enter" button to execute "Video Calibration".
When the message "Success" appears, it means
"Video Calibration" is OK. Choose "Menu" or
"Exit" to leave service mode 1.
- Test signal: 576p, 720p, 1080i
- Test pattern: Master
* After finishing Video adjustment, check Master
pattern.
- Color saturation
- There should not have any lack of SMPTE BAR.
- The screen appears normal, it shouldn't appear
any abnormal condition, such as lines and so on.
- It is unacceptable that the color appears abnormal
and flashing.
EX762/EW762 Confidential
SMPTE BAR
Master
4-2